X28C512/X28C513
512K
X28C512/X28C513
64K x 8 Bit
5 Volt, Byte Alterable E2PROM
FEATURES
• Two PLCC and LCC Pinouts
—X28C512
—X28C010 E PROM Pin Compatible
—X28C513
• Access Time: 90ns
2
• Simple Byte and Page Write
—Single 5V Supply
2
—Compatible with Lower Density E PROMs
— No External High Voltages or V Control
PP
Circuits
—Self-Timed
DESCRIPTION
2
The X28C512/513 is an 64K x 8 E PROM, fabricated
—No Erase Before Write
—No Complex Programming Algorithms
—No Overerase Problem
• Low Power CMOS:
with Xicor’s proprietary, high performance, floating gate
CMOS technology. Like all Xicor programmable non-
volatile memories the X28C512/513 is a 5V only device.
TheX28C512/513featurestheJEDECapprovedpinout
for bytewide memories, compatible with industry stan-
dard EPROMS.
—Active: 50mA
—Standby: 500µA
• Software Data Protection
—Protects Data Against System Level
Inadvertant Writes
• High Speed Page Write Capability
• Highly Reliable Direct Write™ Cell
—Endurance: 100,000 Write Cycles
—Data Retention: 100 Years
• Early End of Write Detection
—DATA Polling
The X28C512/513 supports a 128-byte page write op-
eration, effectivelyprovidinga39µs/bytewritecycleand
enabling the entire memory to be written in less than 2.5
seconds. TheX28C512/513alsofeaturesDATA Polling
andToggleBitPolling,systemsoftwaresupportschemes
used to indicate the early completion of a write cycle. In
addition, the X28C512/513 supports the Software Data
Protection option.
—Toggle Bit Polling
TSOP
PIN CONFIGURATIONS
PLCC / LCC
1
2
3
4
5
6
7
8
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A
A
A
A
A
NC
NC
NC
WE
OE
A
10
CE
11
9
8
13
14
30
29
I/O
I/O
I/O
I/O
I/O
7
6
5
4
3
4
3
2
32 31
A
A
5
6
7
8
9
A
A
A
A
A
PLASTIC DIP
CERDIP
7
6
5
4
3
2
1
0
0
14
13
8
1
28
27
26
25
24
23
22
FLAT PACK
SOIC (R)
A
A
9
9
NC
NC
V
X28C512
(TOP VIEW)
A
10
11
12
13
14
15
16
17
18
19
20
V
CC
NC
X28C512
11
A
OE
A
SS
10
11
12
13
NC
NC
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
NC
NC
NC
NC
I/O
A
10
2
WE
NC
A
CE
I/O
NC
A
A
A
A
A
A
2
1
0
A
3
I/O
I/O
I/O
15
12
15
12
7
6
5
4
7
15 16 17 18 19 20
21
14
A
4
A
14
A
A
A
A
0
1
2
3
A
5
A
7
6
5
4
3
2
1
0
0
1
2
13
A
6
A
8
A
9
3856 FHD F03
A
7
3856 ILL F22
A
8
PGA
A
11
X28C512
A
9
OE
I/O
15
I/O
17
I/O
I/O
21
I/O
22
0
2
3
5
6
30
19
4
3
2
32 31
A
10
11
12
13
14
15
16
A
A
A
A
A
A
A
A
A
A
A
5
29
28
27
26
25
24
23
22
6
5
4
3
2
1
0
8
10
CE
24
A
13
A
14
I/O
16
V
I/O
20
I/O
23
1
1
0
1
SS
4
7
6
9
A
CE
18
7
11
OE
26
A
I/O
7
I/O
6
I/O
5
I/0
4
A
12
A
11
A
25
2
4
3
5
10
11
NC
OE
A
8
X28C513
(TOP VIEW)
I/O
I/O
I/O
V
9
A
10
A
A
27
A
28
9
BOTTOM
VIEW
10
11
12
13
9
7
10
CE
I/O
A
A
A
29
A
13
30
6
7
8
NC
I/O
8
6
7
I/O
I/O
3
0
6
SS
15 16 17 18 19 20
21
NC
NC
32
A
V
36
NC
34
A
A
31
15
CC
14
12
14
5
4
2
3856 FHD F01
NC
NC
NC
1
NC
33
WE
35
3
3856 FHD F04
3856 FHD F02
© Xicor, Inc. 1991, 1995, 1996 Patents Pending
3856-3.1 2/24/99 T1/C0/D0 NS
Characteristics subject to change without notice
1
XICOR [ XICOR INC. ]
